Vitamin D2

Vitamin D2 (CAS 50-14-6), also known as ergocalciferol, is a fat-soluble vitamin produced by UV irradiation of ergosterol. It is sold under trade names including Vio-D, Daral, Condol, and D-Arthin, and carries EC number 200-014-9. No E-code designation applies to this substance.

In personal care formulations, Vitamin D2 functions as a skin conditioner by supporting epidermal cell differentiation and reinforcing the skin barrier when incorporated into creams and serums. In food and pharmaceutical applications, it serves as a bioavailable vitamin D source, correcting dietary deficiencies through oral supplementation and fortified product matrices.

Vitamin D2 is available in pharmaceutical and food-grade forms as a crystalline powder, with compliance options covering Ph.Eur. and FCC monographs. The substance is registered under REACH and supplied under HS code 29362910. Packaging formats typically include amber glass or light-protected containers to prevent photodegradation.